Because of transitive dependencies, my wars are getting populated by xml-apis, xerces jars. I tried following the instructions on the reference page for maven-war-plugin but it is not working.
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <packagingExcludes>WEB-INF/lib/xalan-2.6.0.jar,WEB-INF/lib/xercesImpl-2.6.2.jar,WEB-INF/lib/xml-apis-1.0.b2.jar,WEB-INF/lib/xmlParserAPIs-2.6.2.jar</packagingExcludes> <webXml>${basedir}/src/main/webapp/WEB-INF/web.xml</webXml> <warName>project1</warName> <warSourceDirectory>src/main/webapp</warSourceDirectory> </configuration> </plugin>
What am I doing wrong ? If it matters, I discovered that the maven-war-plugin I'm using is at version 2.1-alpha-1
We can have multiple transitive dependencies can be excluded by using the <exclusion> tag for each of the dependencies we want to exclude and placing all these exclusion tags inside the <exclusions> tag in pom.
It is possible to include or exclude certain files from the WAR file, by using the <packagingIncludes> and <packagingExcludes> configuration parameters. They each take a comma-separated list of Ant file set patterns.
Multiple transitive dependencies can be excluded by using the <exclusion> tag for each of the dependency you want to exclude and placing all these exclusion tags inside the <exclusions> tag in pom. xml. You will need to mention the group id and artifact id of the dependency you wish to exclude in the exclusion tag.
You can mark these dependencies as provided:
<dependency> <groupId>xerces</groupId> <artifactId>xerces</artifactId> <version>2.4.0</version> <scope>provided</scope> </dependency>
This way the maven will add them to the compilation classpath, but will not package them. It is assumed they exist in your servlet container.
See more about maven scopes here under "scope"
Edit If you want to remove classes added via transitive dependencies you can exclude them from the dependency like this:
<dependency> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> <version>2.5.6</version> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency>
(taken from this answer)
See more here
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